/*
 * TinyMCE Writing Improvement Tool Plugin 
 * Author: Raphael Mudge (raffi@automattic.com)
 *
 * http://www.afterthedeadline.com
 *
 * Distributed under the LGPL
 *
 * Derived from:
 *    $Id: editor_plugin_src.js 425 2007-11-21 15:17:39Z spocke $
 *
 *    @author Moxiecode
 *    @copyright Copyright (C) 2004-2008, Moxiecode Systems AB, All rights reserved.
 *
 *    Moxiecode Spell Checker plugin released under the LGPL with TinyMCE
 */

(function() 
{
   var JSONRequest = tinymce.util.JSONRequest, each = tinymce.each, DOM = tinymce.DOM; 

   tinymce.create('tinymce.plugins.AfterTheDeadlinePlugin', 
   {
      getInfo : function() 
      {
         return 
         ({
	    longname :  'After The Deadline',
            author :    'Raphael Mudge',
	    authorurl : 'http://blog.afterthedeadline.com',
	    infourl :   'http://www.afterthedeadline.com',
	    version :   tinymce.majorVersion + "." + tinymce.minorVersion
	 });
      },

      /* initializes the functions used by the AtD Core UI Module */
      initAtDCore : function(editor, plugin)
      {
         var core = new AtDCore();

         core.map = each;

         core.getAttrib = function(node, key) 
         { 
            return editor.dom.getAttrib(node, key); 
         };

	 core.findSpans = function(parent) 
         {
            if (parent == undefined)
               return editor.dom.select('span');
            else
               return editor.dom.select('span', parent);
         };

         core.hasClass = function(node, className) 
         { 
            return editor.dom.hasClass(node, className); 
         };
         
         core.contents = function(node) 
         { 
            return node.childNodes;  
         };

         core.replaceWith = function(old_node, new_node) 
         { 
            return editor.dom.replace(new_node, old_node); 
         };

         core.create = function(node_html) 
         { 
            return editor.dom.create('span', { 'class': 'mceItemHidden' }, node_html);
         };

         core.removeParent = function(node) 
         {
	    editor.dom.remove(node, 1);
            return node;
         };

         core.remove = function(node) 
         { 
            editor.dom.remove(node); 
         };

         core.getLang = function(key, defaultk) 
         { 
             return editor.getLang("AtD." + key, defaultk);
         };

         core.setIgnoreStrings(editor.getParam("atd_ignore_strings", ""));
         core.showTypes(editor.getParam("atd_show_types", ""));
         return core;
      },
 
      /* called when the plugin is initialized */
      init : function(ed, url) 
      {
         if ( typeof(AtDCore) == 'undefined' )
         	return;

		 var t = this;
         var plugin  = this;
         var editor  = ed;
         var core = this.initAtDCore(editor, plugin);

         this.url    = url;
         this.editor = ed;
         ed.core = core;

         /* look at the atd_ignore variable and put that stuff into a hash */
         var ignore = tinymce.util.Cookie.getHash('atd_ignore');

         if (ignore == undefined)
         {
            ignore = {};
         }

         /* add a command to request a document check and process the results. */
         editor.addCommand('mceWritingImprovementTool', function(callback) 
         {
            /* checks if a global var for click stats exists and increments it if it does... */
            if (typeof AtD_proofread_click_count != "undefined")
               AtD_proofread_click_count++;

            /* create the nifty spinny thing that says "hizzo, I'm doing something fo realz" */
            plugin.editor.setProgressState(1);

            /* remove the previous errors */
            plugin._removeWords();

            /* send request to our service */
            plugin.sendRequest('checkDocument', ed.getContent({ format: 'raw' }), function(data, request, someObject)
            {
               /* turn off the spinning thingie */
               plugin.editor.setProgressState(0);

               /* if the server is not accepting requests, let the user know */
               if (request.status != 200 || request.responseText.substr(1, 4) == 'html')
               {
                  ed.windowManager.alert( plugin.editor.getLang('AtD.message_server_error', 'There was a problem communicating with the Proofreading service. Try again in one minute.') );
                  return;
               }

               /* check to see if things are broken first and foremost */
               if (request.responseXML.getElementsByTagName('message').item(0) != null)
               {
                  ed.windowManager.alert(request.responseXML.getElementsByTagName('message').item(0).firstChild.data);
                  return;
               }

               var results = core.processXML(request.responseXML);
               var ecount  = 0;

               if (results.count > 0)
               {
                  ecount = plugin.markMyWords(results.errors);
                  ed.suggestions = results.suggestions; 
               }

               if (ecount == 0 && (!callback || callback == undefined))
                  ed.windowManager.alert(plugin.editor.getLang('AtD.message_no_errors_found', 'No writing errors were found.'));
               else if (callback)
                  callback(ecount);
            });
         });
          
         /* load cascading style sheet for this plugin */
     	 editor.onInit.add(function() 
         {
            /* loading the content.css file, why? I have no clue */
            if (editor.settings.content_css !== false)
            {
               editor.dom.loadCSS(editor.getParam("atd_css_url", url + '/css/content.css'));
            }
	 });

         /* again showing a menu, I have no clue what */
	 editor.onClick.add(plugin._showMenu, plugin);

         /* we're showing some sort of menu, no idea what */
	 editor.onContextMenu.add(plugin._showMenu, plugin);

         /* strip out the markup before the contents is serialized (and do it on a copy of the markup so we don't affect the user experience) */
         editor.onPreProcess.add(function(sender, object) 
         {
            var dom = sender.dom;

            each(dom.select('span', object.node).reverse(), function(n) 
            {
               if (n && (dom.hasClass(n, 'hiddenGrammarError') || dom.hasClass(n, 'hiddenSpellError') || dom.hasClass(n, 'hiddenSuggestion') || dom.hasClass(n, 'mceItemHidden') || (dom.getAttrib(n, 'class') == "" && dom.getAttrib(n, 'style') == "" && dom.getAttrib(n, 'id') == "" && !dom.hasClass(n, 'Apple-style-span') && dom.getAttrib(n, 'mce_name') == ""))) 
               {
                  dom.remove(n, 1);
               }
            });
         });

         /* cleanup the HTML before executing certain commands */
	 editor.onBeforeExecCommand.add(function(editor, command) 
         {
            if (command == 'mceCodeEditor')
            {
               plugin._removeWords();
            }
            else if (command == 'mceFullScreen')
            {
               plugin._done();
            }
         });
         
		ed.addButton('AtD', { 
			title: ed.getLang('AtD.button_proofread_tooltip', 'Proofread Writing'),
			image: ed.getParam('atd_button_url', url + '/atdbuttontr.gif'), 
			cmd: 'mceWritingImprovementTool'
		});
      },

      _removeWords : function(w) 
      {
         var ed = this.editor, dom = ed.dom, se = ed.selection, b = se.getBookmark();

         ed.core.removeWords(undefined, w);

         /* force a rebuild of the DOM... even though the right elements are stripped, the DOM is still organized
            as if the span were there and this breaks my code */

         dom.setHTML(dom.getRoot(), dom.getRoot().innerHTML);

         se.moveToBookmark(b);
      },

      markMyWords : function(errors)
      {
         var ed  = this.editor;
         var se = ed.selection, b = se.getBookmark();

         var ecount = ed.core.markMyWords(ed.core.contents(this.editor.getBody()), errors);

         se.moveToBookmark(b);
         return ecount;
      },

      _showMenu : function(ed, e) 
      {
         var t = this, ed = t.editor, m = t._menu, p1, dom = ed.dom, vp = dom.getViewPort(ed.getWin());
         var plugin = this;

         if (!m) 
         {
            p1 = DOM.getPos(ed.getContentAreaContainer());
            //p2 = DOM.getPos(ed.getContainer());

            m = ed.controlManager.createDropMenu('spellcheckermenu', 
            {
               offset_x : p1.x,
               offset_y : p1.y,
               'class' : 'mceNoIcons'
            });

            t._menu = m;
         }

         if (ed.core.isMarkedNode(e.target))
         {
            /* remove these other lame-o elements */
            m.removeAll();

            /* find the correct suggestions object */
            var errorDescription = ed.core.findSuggestion(e.target);

            if (errorDescription == undefined)
            {
               m.add({title : plugin.editor.getLang('AtD.menu_title_no_suggestions', 'No suggestions'), 'class' : 'mceMenuItemTitle'}).setDisabled(1);
            }
            else if (errorDescription["suggestions"].length == 0)
            {
               m.add({title : errorDescription["description"], 'class' : 'mceMenuItemTitle'}).setDisabled(1);
            }
            else
            {
               m.add({ title : errorDescription["description"], 'class' : 'mceMenuItemTitle' }).setDisabled(1);

               for (var i = 0; i < errorDescription["suggestions"].length; i++)
               {
                  (function(sugg)
                   {
                      m.add({
                         title   : sugg, 
                         onclick : function() 
                         {
                            ed.core.applySuggestion(e.target, sugg);
                            t._checkDone();
                         }
                      });
                   })(errorDescription["suggestions"][i]);
               }

               m.addSeparator();
            }
             
            if (errorDescription != undefined && errorDescription["moreinfo"] != null)
            {
               (function(url)
                {
                   m.add({
                     title : plugin.editor.getLang('AtD.menu_option_explain', 'Explain...'),
                     onclick : function() 
                     {
                        ed.windowManager.open({
                           url : url,
                           width : 480,
                           height : 380,
                           inline : true
                        }, { theme_url : this.url });
	             }
                  });
               })(errorDescription["moreinfo"]);

               m.addSeparator();
            }

            m.add({
               title : plugin.editor.getLang('AtD.menu_option_ignore_once', 'Ignore suggestion'),
               onclick : function() 
               {
                  dom.remove(e.target, 1);
                  t._checkDone();
	       }
            });

            if (String(this.editor.getParam("atd_ignore_enable",  "false")) == "true")
            {
                m.add({
                  title : plugin.editor.getLang('AtD.menu_option_ignore_always', 'Ignore always'),
                  onclick : function() 
                  {
                      var url = t.editor.getParam('atd_ignore_rpc_url', '{backend}');

                      if (url == '{backend}')
                      {
                         /* Default scheme is to save ignore preferences in a cookie */

                         var ignore = tinymce.util.Cookie.getHash('atd_ignore'); 
                         if (ignore == undefined) { ignore = {}; }
                         ignore[e.target.innerHTML] = 1;
                  
                         tinymce.util.Cookie.setHash('atd_ignore', ignore, new Date( (new Date().getTime()) + 157680000000) );
                      }
                      else
                      {
                         /* Plugin is configured to send ignore preferences to server, do that */

                         var id  = t.editor.getParam("atd_rpc_id",  "12345678");

                         tinymce.util.XHR.send({
                             url          : url + encodeURI(e.target.innerHTML).replace(/&/g, '%26') + "&key=" + id,
                             content_type : 'text/xml',
                             async        : true,
                             type         : 'GET',
                             success      : function( type, req, o )
                             {
                                /* do nothing */
                             },
                             error        : function( type, req, o )
                             {
                                alert( "Ignore preference save failed\n" + type + "\n" + req.status + "\nAt: " + o.url ); 
                             }
                         });

                         /* update atd_ignore_strings with the new value */
                         t.editor.core.setIgnoreStrings(e.target.innerHTML); /* this does an update */
                     }

                     t._removeWords(e.target.innerHTML);
                     t._checkDone();
                  }
               });
            }
            else
            {
                m.add({
                  title : plugin.editor.getLang('menu_option_ignore_all', 'Ignore all'),
                  onclick : function() 
                  {
                     t._removeWords(e.target.innerHTML);
                     t._checkDone();
                  }
               });
            }

            /* show the menu please */
            ed.selection.select(e.target);
            p1 = dom.getPos(e.target);
            m.showMenu(p1.x, p1.y + e.target.offsetHeight - vp.y);

            return tinymce.dom.Event.cancel(e);
         } 
         else
         {
            m.hideMenu();
         }
      },

      /* loop through editor DOM, call _done if no mce tags exist. */
      _checkDone : function() 
      {
         var t = this, ed = t.editor, dom = ed.dom, o;

         each(dom.select('span'), function(n) 
         {
            if (n && dom.hasClass(n, 'mceItemHidden'))
            {
               o = true;
               return false;
            }
         });

         if (!o)
         {
            t._done();
         }
      },

      /* remove all tags, hide the menu, and fire a dom change event */
      _done : function() 
      {
         var plugin    = this;
         plugin._removeWords();

         if (plugin._menu)
         {
            plugin._menu.hideMenu();
         }

         plugin.editor.nodeChanged();
      },

      sendRequest : function(file, data, success)
      {
         var id  = this.editor.getParam("atd_rpc_id",  "12345678");
         var url = this.editor.getParam("atd_rpc_url", "{backend}");
         var plugin = this;

         if (url == '{backend}' || id == '12345678') 
         {
            this.editor.setProgressState(0);
            alert('Please specify: atd_rpc_url and atd_rpc_id');
            return;
         }
   
         tinymce.util.XHR.send({
            url          : url + "/" + file,
            content_type : 'text/xml',
            type         : "POST",
            data         : "data=" + encodeURI(data).replace(/&/g, '%26') + "&key=" + id, 
            async        : true,
            success      : success,
            error        : function( type, req, o )
            {
	       plugin.editor.setProgressState(0);
               alert( type + "\n" + req.status + "\nAt: " + o.url ); 
            }
         });
      }
   });

   // Register plugin
   tinymce.PluginManager.add('AtD', tinymce.plugins.AfterTheDeadlinePlugin);
})();
